Helena Ningna You, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

A199762 Issued in CA

Practice address

300 Pasteur Dr
Stanford, CA 94305-2200

Phone

(650) 723-4000

NPI assigned

Apr 2, 2020

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• LPCH Medical Group Div of Lucile

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1417907940
  Medicare reassignment NPD
• Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927

  Diagnostic Radiology

  Medicare reassignment NPD
• John Muir Trauma Physicians Billing Service

  • Hospitalist Physician
  • Walnut Creek, CA
  • NPI 1093864837
  Medicare reassignment
• Stanford Health Care

  • Specialty Pharmacy
  • Mountain View, CA
  • NPI 1760366132
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1585785600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757376000000",
    "number": "1528697554",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8200 Walnut Hill Ln",
            "address_purpose": "LOCATION",
            "city": "Dallas",
            "state": "TX",
            "postal_code": "752314402",
            "country_code": "US",
            "telephone_number": "214-345-6789",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YOU",
        "first_name": "HELENA",
        "middle_name": "NINGNA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-04-02",
        "last_updated": "2025-09-09",
        "certification_date": "2025-09-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A199762",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• SE-Young Yoon, MD
• Tyler Jerry York, MD
• Takayuki Yoshida, MD, PHD
• Isaac Yoshii, M.D.
• Dokyoung Sophia You, PHD
• Edward Hong Ki Youn, NP
• Kyan Younes, MD
• Sheren Fouad Taha Younes
• Alaysia Yahshunnie Alle Young, LCSW
• Thomas Kim Young, MBBS, DDS

• Diagnostic Radiology Physician in Stanford, CA
• Providers in Stanford, CA by specialty
• Diagnostic Radiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.